Re: Need help wiring a vro oil tank to the motor on a 1985 60hp johnson (j60elcod)
Wright or wrong 'Tan' may easily be tested.
Ground it and try running the engine above 2500 rpm.
If correct - engine will keep on reving, if 'wrong' SLOW will limit the rpm.
You may even test with an Ohm meter, it should be no continuity between the Tan connector and the Tan going into the power pack.